RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived...
All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowledged.
Cynthia Furse(note Smith Chart earrings in her photo), a Professor
of Electromagnetics at the University of Utah's Department of Electrical Engineering, has produced
a very nice video series that covers a wide range of topics and techniques on the venerable Smith
Chart. The ten videos begin with an introduction, progress through reflection coefficients, shorts
and opens, impedance matching, a slot line example, and finally a summary.
Dr. Furse rose to worldwide fame about a decade ago a least partially based on the colorful
handmade quit she created with a Smith Chart pattern; it is an exquisite example of juxtapositioning
the traditional with the contemporary. Of course holding at least 13 patents and conducting research
in bio-electromagnetics, antennas, wireless communication, electrical fault location, electrical
properties of sea ice, and engineering education outreach helped as well.
Chart quilt (bottom of page), by Professor Cynthia Furse of the
Department of Electrical and Computer Engineering at University of Utah (formerly at Utah State
University). She has her students sign when they have finished their design projects.